The problem is that you're trying to access the state of a different component. Your'e addressing this.state.tickets.status where ticket state is not declared in AssignButton

You've got two components. TicketBoard & AssignButton.
Your setting the tickets state in TicketBoard and you're trying to access it in AssignButton

Try passing down the tickets state to the assignButton via props and the change your conditions from this.state.tickets.status to this.props.tickets.status.
In addition, make sure that you won't have problems with .status being called on an empty array...